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libvirt: Log breadcrumb for known encryption bug
The initial implementation of native LUKS support within Libvirt introduced a small issue when using a passphrase that is a multiple of 16 bytes in size. This is documented in the following bug and associated patch posted to the Libvirt development list: Unable to use LUKS passphrase that is exactly 16 bytes long https://bugzilla.redhat.com/show_bug.cgi?id=1447297 [libvirt] [PATCH] Fix padding of encrypted data https://www.redhat.com/archives/libvir-list/2017-May/msg00030.html This change introduces a known issue release note and logs an additional breadcrumb when we appear to hit this with pointers to the above. Closes-Bug: #1778044 Change-Id: Id346bce6e47431988cce7001abcf29a9faf2936a
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|The initial implementation of native LUKS decryption within Libvirt 2.2.0|
|had a `known issue`_ with the use of passphrases that were a multiple of 16|
|bytes in size. This was `resolved`_ in the upstream 3.3.0 release of|
|Libvirt and has been backported to various downstream distribution specific|
|A simple warning will reference the above if this issue is encountered by|
|Nova however operators of the environment will still need to update|
|Libvirt to a version where this issue has been fixed to resolve the issue.|
|.. _known issue: https://bugzilla.redhat.com/show_bug.cgi?id=1447297|
|.. _resolved: https://libvirt.org/git/?p=libvirt.git;a=commit;h=7189099|